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Flauer [41]
2 years ago
8

5x+y when x=6 and y=-2

Mathematics
2 answers:
kenny6666 [7]2 years ago
5 0

Answer:

28

Step-by-step explanation:

5(6) + (-2) = 30 + (-2) = 30-2 = 28

VikaD [51]2 years ago
3 0

Answer:

28

Step-by-step explanation:

x=5  y=2

5x + y

5(6) + (-2)

30 + (-2)

30 - 2

28

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The measure of angle θ is 3pi/2 . The measure of its reference angle is /, and tan θ is .
Sphinxa [80]

Answer:

Reference angle: \frac{\pi}{2}

tan(\theta)=tan(\frac{3\pi}{2}) is not defined.

Step-by-step explanation:

The angle \theta goes from the positive x-axis to the negative y-axis.

Therefore the reference angle can be calculated as following:

\frac{3\pi}{2}-\pi=\frac{\pi}{2}

 We know that tan(\theta)is:

tan(\theta)=\frac{sin(\theta)}{cos(\theta)}

If \theta=\frac{3\pi}{2} then cos(\frac{3\pi}{2})=0, therefore tan(\frac{3\pi}{2}) is not defined, because the division by 0 is not defined.

8 0
3 years ago
Choose the correct simplification of the expression (−2x + 8y)(9x − 3y)
butalik [34]

Answer:

=-18x^2+78xy-24y^2

Step-by-step explanation:

(-2x+8y)(9x-3y)

-18x^2+6xy+72yx-24y^2

-18x^2+(6xy+72xy)-24y^2

=18x^2+78xy-24y^2

7 0
3 years ago
There are 20 children in the cast of a class play,
puteri [66]
D would be your answer
3 0
3 years ago
500 + b = 200. What would b equal?
zloy xaker [14]

Answer:

-300

Step-by-step explanation:

200-500=-300

500+(-300)=200

5 0
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Witch property is used to simplify 3 C + 9 + 4 C equals 3 C + 4 C + 9
Inga [223]
This is the associative property of addition
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